Finite Element Modeling

Modeling of Interstitial Ultrasound Ablation for Continuous Applicator Rotation with MR Validation

Author(s): Katie Gandomi, Paulo Carvalho, Matthew Tarasek, Eric Fiveland, Chitresh Bhushan, Emery Williams, Paul Neubauer, Zhanyue Zhao, Julie Pilitsis, Desmond Yeo, Christopher Nycz, Everette C. Burdette, Gregory S. Fischer
Modeling of Interstitial Ultrasound Ablation for Continuous Applicator Rotation with MR Validation 170 177 IEEE Transactions on Biomedical Engineering (TBME)
Predictive modeling can play an important role in thermal ablative cancer treatments where estimated energy deposition may integrate into pre-operative planning software or combine with closed loop control. In this work, we develop a finite element model capable of simulating continuous rotation by a directional interstitial ultrasound applicator. The developed model simulates temperature maps for different rotation trajectories. The developed simulation was validated using magnetic resonance thermal imaging and demonstrated performance suitable for real-time control of robotically actuated conformal tumor ablation. read more

Laparoscopic Renal Denervation System for Treating Resistant Hypertension: Overcoming Limitations of Catheter-based Approaches

Author(s): Jinhwan Baik, Won Hoon Song, Donghyun Yim, Sangyong Lee, Sunchoel Yang, Hae-Yong Lee, Eue-Keun Choi, Chang Wook Jeong, Sung-Min Park
Laparoscopic Renal Denervation System for Treating Resistant Hypertension: Overcoming Limitations of Catheter-based Approaches 170 177 IEEE Transactions on Biomedical Engineering (TBME)
The radical sympathectomy and percutaneous catheter-based renal denervation (RDN) are two techniques proposed to treat life-threatening resistant hypertension. However, sympathectomy has been abandoned due to the procedure being too invasive, and RDN resulted in variation in blood pressure reduction between patients due to suboptimal denervation. Thus, a method to effectively ablate renal nerves while not being very invasive is needed to treat the resistant hypertension patients. Here we propose a minimally invasive Laparoscopic Denervation System (LDS) to serve this unmet clinical need. The LDS employs a direct renal nerve ablation technique while not imparting thermal arterial damage. read more

Micro-to-Nano Biomechanical Modeling for Assisted Biological Cell Injection

Micro-to-Nano Biomechanical Modeling for Assisted Biological Cell Injection 150 150 IEEE Transactions on Biomedical Engineering (TBME)

Hamid Ladjal, Jean-Luc Hanus, Antoine Ferreira Volume: 60, Issue: 9, Page: 2461-2471 Cell manipulation is a prevalent process in the field of molecular biology. This process plays an important role in…

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